Mohamed Hammad Elsayed is a Research Scientist at the Interdisciplinary Research Center for Hydrogen Technologies and Carbon Management, King Fahd University of Petroleum and Minerals (KFUPM), Saudi Arabia. He received his Ph.D. in Chemical Engineering from National Tsing Hua University, Taiwan. His research focuses on advanced conjugated organic polymer materials for sustainable energy and environmental applications, including photocatalysis, electrocatalysis, hydrogen production and storage, carbon dioxide capture and conversion, porous organic materials, and energy storage technologies. Dr. Elsayed has authored numerous publications in leading international journals and holds patented innovations in advanced materials. His work is dedicated to developing next-generation technologies that support clean energy transition and carbon management solutions